Figure 4
From: Population variation in the trophic niche of the Trinidadian guppy from different predation regimes
Top: Guppy trophic position across HP and LP sites in the five studied streams. Bottom: Relationship between guppy trophic position and invertebrate biomass in the five studied streams. HP guppies: filled symbols; LP guppies: open symbols. Values are averages of raw data. Error bars are ±1 standard error.
